CN218922675U - Orthopedic implant with soft tissue repair and system thereof - Google Patents

Abstract

The utility model discloses an orthopedic implant with soft tissue repair and a system thereof, wherein the orthopedic implant comprises a nail body, a traction wire and a knot, the nail body comprises an elongated main body and is provided with a proximal end and a distal end, the knot is positioned outside the distal end of the nail body, one end of the traction wire is connected with the knot, the other end of the traction wire is free outside the nail body, the traction wire is configured and pulled, and the knot is abutted against the outer end of the nail body; the knot has a soft tissue suture penetrating structure; the elongate body comprises a surface structure of the form: one or more ridges, flanges or ribs extending around the elongate body and facilitating pushing into the target object without rotating the pin; or a plurality of threads extending around the elongate subject and facilitating rotation into the target object. The soft tissue suture penetrates into the penetrating structure of the knot, the knot can be propped against the far end of the nail body in the state that the traction wire is pulled, the knot not only can realize the function of the terminal in the prior art, but also reduces the space occupying the bone marrow canal relative to the terminal.

Description

Orthopedic implant with soft tissue repair and system thereof

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an orthopedic implant with soft tissue repair and an anchor system.

Background

Ligament repair or reconstruction is often required in bone surgery due to ligament injury surgery. The repair of ligaments can directly affect the exercise capacity of a patient, poor repair can lead to unstable joints, secondary joint cartilage damage and finally affect joint movement. The current use of a threaded anchor to repair ligaments is one of the common means of ligament reconstruction.

The suture anchor is a very small implant, in the using process, a bone tunnel is firstly formed on a bone by using a puncher, the anchor is implanted under cortical bone by using an anchor inserter, the torn or torn soft tissue is fixed on the bone surface by using a suture, the healing of the soft tissue and the bone is promoted, the repairing effect is achieved, but the problem of insufficient fixing strength is solved, the knotless anchor is required to be matched with the suture anchor for use, the fixing strength between the soft tissue and the bone is improved, namely, in the operating process, the suture anchor is firstly implanted into the bone, the soft tissue is fixed on the bone surface by using the suture, then the suture is penetrated into a knotless anchor threading hole, the knotless anchor is implanted into the bone by selecting a proper position, and the soft tissue suture is fixed in the bone marrow tract by extruding the anchor and the bone marrow tract.

However, the existing threading holes for passing soft tissue suture are positioned on the terminal at the distal end of the knotless anchor, the arrangement of the terminal clearly increases the length of the knotless anchor, and then the fact that deeper bone marrow passages need to be made on bones is unfavorable for the rehabilitation of patients.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the orthopedic implant with soft tissue repair and the system thereof, the soft tissue suture thread penetrates into the penetratable structure of the thread knot, the thread knot can be abutted against the far end of the nail body in the state that the traction wire is pulled, the thread knot not only can realize the functions of the terminal in the prior art, but also can reduce the space occupying the bone marrow canal relative to the terminal.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an orthopedic implant with soft tissue repair, the orthopedic implant being a wired or knotless anchor, the orthopedic implant comprising a shank comprising an elongated body having a proximal end and a distal end, a pull wire positioned outside the distal end of the shank, one end of the pull wire connecting the wire, the other end being free outside the shank, the pull wire being configured to pull, the wire being positioned against the distal end of the shank;

the knot is provided with a soft tissue suture penetrating structure, and the soft tissue suture is a suture with a suture anchor which is implanted into a target object and is free outside the target object;

the elongate body comprises a surface structure of the form: one or more ridges, flanges or ribs extending around the elongate body and facilitating pushing into the target object without rotating the pin body; or (b)

A plurality of threads extending around the elongate body and facilitating rotation into the target object.

In one embodiment of the present utility model, the nail body is implanted in the target object, and the knot is in a shape of deformation compression.

In one embodiment of the utility model, a hollow cavity is formed along the nail body, the traction wire passes through the hollow cavity, and the wire knot is connected outside the distal end of the nail body.

In one embodiment of the utility model, the knot is a knot formed by tying a suture thread outside the nail body.

In one embodiment of the utility model, the knot is a spherical knot or a cylindrical knot.

In one embodiment of the utility model, the knot is a ball-shaped knot.

Based on the same inventive concept, the present utility model also provides an orthopedic implant system with soft tissue repair, comprising the orthopedic implant with soft tissue repair described in the above embodiments and an inserter for implanting the orthopedic implant into a target object.

By adopting the technical scheme, the utility model has the following advantages and positive effects compared with the prior art:

the utility model pulls a knot outside the distal end of the nail body through the pulling wire, and the knot is provided with a structure capable of penetrating soft tissue suture, and the knot is propped against the outer part of the distal end of the nail body in the state of being pulled by the pulling wire, so as to prevent the knot from entering the inside of the nail body. Therefore, after the implantation of the wired anchor is completed, free soft tissue sutures can be threaded into the penetratable structure of the knot, and the anchor of the present utility model can be implanted into bone while the soft tissue sutures are secured in the bone. The wire knot of the utility model can realize the terminal function of the prior art, and reduces the space occupied by bone marrow channels relative to terminals.

In addition, because the terminal of the prior art has a hard texture, the terminal is generally made of the same material as the nail body, and the aperture of the threading hole of the terminal is not changeable. However, the knot of the utility model has softer texture, and the size of the wearable structure can be changed to be smaller, so that the knot can be worn with a plurality of soft tissue sutures, and the knot is convenient for operating doctors to wear the soft tissue sutures.

Further, after the knot is implanted into the bone, the knot is further compressed due to the extrusion action of the nail body and the bone marrow canal, and the knot is formed into a compressed shape, so that the occupied space of the bone marrow canal is smaller. Thus, the depth of the bone marrow canal is further reduced relative to existing terminals, increasing the safety of the procedure, and relatively increasing safety and comfort for the patient.

Drawings

FIG. 1 is a schematic view of the assembled tapered anchor and inserter of the present utility model;

FIG. 2 is a schematic view of the tapered anchor of FIG. 1 after implantation into bone;

FIG. 3 is a schematic diagram of a second embodiment of the tapered anchor and inserter of the present utility model after assembly;

FIG. 4 is a schematic diagram II of the assembled tapered anchor and inserter of FIG. 3;

FIG. 5 is a schematic view of a third embodiment of the tapered anchor of the present utility model assembled with an inserter;

FIG. 6 is a schematic view of the threaded anchor of the present utility model assembled with an inserter;

FIG. 7 is a schematic diagram II of the threaded anchor of the present utility model assembled with an inserter;

FIG. 8 is a schematic view of a third embodiment of the threaded anchor of the present utility model assembled with an inserter;

fig. 9 is a view showing the state of the threaded anchor of the present utility model implanted in bone.

Detailed Description

The present utility model provides an orthopedic implant with soft tissue repair and a system thereof, which are described in further detail below with reference to the accompanying drawings and specific examples. The advantages and features of the present utility model will become more apparent from the following description. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the subsequent figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of this application, the "proximal" end is the end that is closer to the operator and the "distal" end is the end that is farther from the operator.

The purpose of this embodiment is to provide an orthopedic implant with soft tissue repair and a system thereof, as shown in fig. 1-8, wherein the orthopedic implant is a knotless anchor or a string anchor, the orthopedic implant of this embodiment can be either a knotless anchor or a string anchor, the orthopedic implant comprises a nail body 1, a traction wire 6 and a knot 2,2'2", the nail body 1 has a proximal end 102 and a distal end 101, the knot 2,2'2" is located outside the distal end 101 of the nail body 1, one end of the traction wire 6 is connected with the knot 2,2'2", the other end is free outside the nail body 1, the traction wire 6 is configured to draw, and the knot 2,2'2" is abutted against the distal end 101 of the nail body 1;

the knot 2,2' has a structure that a soft tissue suture 5 can be penetrated, and the soft tissue suture 5 is a suture with a suture anchor which is implanted into the bone and is free outside the bone.

In this embodiment, the nail body 1 has a hollow cavity along its axial direction, the traction wire 6 passes through the hollow cavity, and the knot 2,2'2 "is connected to the distal end 101 of the nail body 1, the free end of the traction wire 6 is located outside the nail body 1, and the free end of the traction wire 6 is pulled, so that the knot 2,2'2" abuts against the outside of the distal end 101 of the nail body 1, and the knot 2,2'2 "is fixed to the distal end 101 of the nail body 1. The nail body 1 may not be provided with a hollow cavity, a side hole through which a plurality of traction wires 6 pass may be provided on the nail body 1, and the distal end 101 of the nail body 1 also has a wire hole, one end of the traction wire 6 is connected with the wire knot 2,2'2", the other end of the traction wire is sequentially arranged on the side hole of the nail body 1 in a penetrating manner from the wire hole of the distal end 101, so that the traction wire 6 is spirally wound on the nail body 1 and extends to be free outside the nail body 1, or the nail body 1 is in a hollow structure, and the traction wire 6 can also be spirally wound on the nail body 1, therefore, the embodiment of fixing the wire knot 2,2'2" on the distal end 101 of the nail body 1 by freely pulling the traction wire 6 is not limited to the embodiment that the traction wire 6 passes through the hollow cavity and is connected with the wire knot 2,2'2".

As shown in fig. 1-9, the tack body 1 may include a generally elongated body having a proximal end 102 and a distal end 101 with a hollow cavity extending therebetween. Referring to the shank 1 in fig. 6-8, the elongated body of the shank 1 may have a variety of configurations, shapes and sizes, such as threads, and may be configured in other shapes, such as teeth, barbs, protrusions, etc., but in the embodiment shown at 3-4, the elongated body may include surface structures of the following form: one or more ribs extending around the elongate body and facilitating pushing into the medullary canal 9 without rotating the nail body 1, resembling a cone-shaped structure, but may also be configured as ridges or flanges or the like. In yet other embodiments, as shown in fig. 6-8, the elongate body may include surface structures of the form: a continuous plurality of threads extending around the elongate body and facilitating rotation into the medullary canal 9. The distal end 101 of the shaft 1 may be configured to be tapered or bullet-tipped, with the diameter of the shaft 1 slightly decreasing from the proximal end 102 to the distal end 101, which may facilitate introduction of the shaft 1 into a bone tunnel, such as shown in fig. 1-5, where the shaft 1 is tapered with a proximal dimension that is greater than a distal dimension.

The nail body 1 may be formed of various materials, such as biodegradable materials, blends of biodegradable materials and inorganic materials, metal alloys having good compatibility with bones, etc., for example: polyether ether ketone (PEEK), alloy, magnesium alloy, stainless steel, or metal material with polymer coating on the surface.

In this embodiment, the orthopaedic implant system comprises the orthopaedic implant described above and an inserter, which is either a threaded or knotless anchor, collectively referred to as anchors, for implanting the anchor into bone 7, the inserter comprising an inner shaft 3 and an outer shaft 4, the inserter having proximal and distal ends, the outer shaft 4 being located proximal to the proximal end of the inserter, the inner shaft 3 being proximal to the distal end of the inserter, the inner and outer shafts 4 also having hollow cavities axially with the pin 1, the proximal end 102 of the pin 1 being connected to the outer shaft 4, the proximal end of the inner shaft 3 being connected to the distal end 101 of the pin 1, a pull wire 6 passing through the hollow cavities of the outer shaft 4, the pin 1 and the inner shaft 3, the distal end 301 of the inner shaft 3 pulling the knot 2,2'2", the free end of the pull wire 6 being located outside the inserter.

In the operation implementation process, referring to fig. 1, 3 and 5-8, after the suture anchor with the thread is implanted into the bone 7, the part of the suture anchor with the thread, which is the part of the suture 5 outside the head of the bone 7, is the soft tissue suture 5 of the embodiment, bone marrow holes are punched in other proper places in the bone 7, an inserter is connected with the anchor, the soft tissue suture 5 penetrates into the penetratable structure of the knot 2,2'2", at this time, the soft tissue suture 5 can be freely adjusted in the knot 2,2'2", then the inner shaft 3 is placed in a preset bone marrow canal 9, the tension of the soft tissue suture 5 is adjusted, the soft tissue suture 5 is tidied up along the nail body 1, the free end of the traction wire 6 is pulled, the knot 2,2'2 "is fixed outside the distal end 301 of the inner shaft 3, the nail body 1 is implanted into the bone marrow canal 9 along the inner shaft 3 (as the anchor shown in fig. 1-5, the nail body 1 is implanted; as the anchor shown in fig. 6-8, the nail body 1 is rotationally implanted) after the implantation, the superfluous part of the thread 6 is cut. As shown in fig. 2 and 4, a schematic view of the anchor being implanted in the bone marrow canal 9 is shown.

Therefore, the knot 2,2'2″ of the present embodiment can realize the terminal function of the related art, and occupies less space of the medullary canal 9 than the terminal.

In addition, since the terminal of the prior art has a hard texture, the same material as the nail body 1 is generally used, and the diameter of the threading hole of the terminal is not changeable. However, the knot 2,2'2 "of the present utility model has a soft texture, and the size of the wearable structure can be changed to be smaller, so that the knot 2,2'2" can be worn with a plurality of soft tissue sutures 5, and the knot 2,2'2 "is convenient for the operator to wear the soft tissue sutures 5.

Further, after the knot 2,2'2 "is implanted in the bone 7, the knot 2,2'2" is further compressed due to the extrusion of the nail body 1 and the bone marrow canal 9, and the knot 2,2 "is formed into a compressed shape, so that the occupied space of the bone marrow canal 9 is smaller. Thus, the depth of the bone marrow canal 9 is further reduced, the safety of the operation is increased,

safety and comfort are relatively increased for the patient.

As shown in FIGS. 1-2 and 6, the knot 2,2'2 "is a spherical knot 2,2', a spherical knot 2,2'

The knot 2 formed by knotting the traction wire 6 can be knotted, or the knot formed by knotting other medical sutures can be knotted, and the knot is connected by the traction wire 6. The knot 2,2'2 "may also be other shapes, such as knot 2" shown in fig. 5 and 8, with knot 2 "being cylindrical in shape.

As shown in fig. 3-4, the knot 2' may be a ball-shaped knot.

As shown in fig. 9, the implant of the screw structure of the present embodiment is implanted into the bone 10 as a knotless anchor, and after the anchor is implanted into the bone 7, the soft tissue suture 5 is fixed in the bone 7, and the knot 2' is further compressed, in a deformed compressed state. Whereas for the band wire anchor the knot 2' in fig. 9 does not need to be threaded into the soft tissue suture 5, the situation is the same as in fig. 9 after implantation into the bone 7.

The knot 2,2' of the embodiment is adopted to replace the existing knotless anchor terminal, thereby not only realizing the function of fixing the soft tissue suture 5 by the terminal, but also enabling the soft tissue suture 5 of the knot 2,2' to be provided with a variable size of the penetrating structure, the soft tissue suture 5 is conveniently threaded into the knot 2,2'2 "by a clinician, and a plurality of soft tissue sutures 5 can be threaded according to the operation requirement. More importantly, the depth of the bone marrow canal 9 is reduced. Although the anchor is used as an implant, the volume of the anchor itself is small, the bone marrow canal 9 which is hit on the bone 7 can be reduced on the bone 7 of the patient, and the safety for the patient is increased, in particular the healing period after operation is reduced. Meanwhile, compared with the existing knotless anchor, the knot 2,2 'of the embodiment is adopted, parts of terminals are fewer, the knot 2,2' is adopted to replace the terminal, the cost is reduced, and certain medical cost can be reduced for patients.

In addition, the anchor of the present embodiment may be used as a knotless anchor, or may be used as a suture anchor, as the suture anchor, the knot 2,2'2 "does not need to be threaded into any suture, and the knot 2,2'2" is used to fix the pull wire 6 in the bone 7, and the pull wire 6 is used as a suture to be threaded into the soft tissue suture 5. That is, in the actual operation, after the bone marrow canal 9 is made in the bone 7, the inner shaft 3 is placed in the bone marrow canal 9, the traction wire 6 is pulled, the knot 2,2' is fixed at the distal end 301 of the inner shaft, the inserter implants the nail body 1 along the inner shaft 3 into the bone marrow canal 9 (as the anchor shown in fig. 1-5, the nail body 1 is knocked and implanted; as the anchor shown in fig. 6-8, the nail body 1 is rotationally implanted), and the free traction wire 6 is penetrated into soft tissues by using the penetrating device, thereby realizing the fixation of the soft tissues.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Even if various changes are made to the present utility model, it is within the scope of the appended claims and their equivalents to fall within the scope of the utility model.

Claims (7)

1. An orthopedic implant with soft tissue repair comprising a nail body comprising an elongated body having a proximal end and a distal end, a pull wire having one end connected to the wire knot and the other end free from the exterior of the nail body, the pull wire being configured to pull, the wire knot bearing against the distal end of the nail body, and a knot;

the knot is provided with a soft tissue suture penetrating structure, and the soft tissue suture is a suture with a suture anchor which is implanted into a target object and is free outside the target object;

the elongate body comprises a surface structure of the form: one or more ridges, flanges or ribs extending around the elongate body and facilitating pushing into the target object without rotating the pin body; or (b)

A plurality of threads extending around the elongate body and facilitating rotation into the target object.

2. The orthopedic implant with soft tissue repair of claim 1 wherein said pin is implanted in a target object and said knot is in a deformed compressed form.

3. An orthopaedic implant with soft tissue repair according to claim 1 or claim 2, wherein there is a hollow cavity along the shank through which the pull wire passes, the knot being connected externally to the distal end of the shank.

4. An orthopaedic implant with soft tissue repair according to claim 1 or 2, wherein the knot is a knot formed by tying a suture thread outside the body of the nail.

5. The orthopedic implant with soft tissue repair of claim 4 wherein said knot is a spherical knot or a cylindrical knot.

6. An orthopaedic implant with soft tissue repair according to claim 1 or 2, wherein the knot is a ball-shaped clew.

7. An orthopedic implant system with soft tissue repair comprising the orthopedic implant with soft tissue repair of any of claims 1-6 and an inserter for implanting the orthopedic implant into a target object.

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